EDITORIAL 299 



probably be a year or more before this catalogue can be pub- 

 lished, and, in the meantime, to assist in avoiding such duplica- 

 tion, the writer offers to furnish geologists, who will correspond 

 with him, such information as he possesses, regarding names 

 which they propose to use as formation names. 



F. B. Weeks. 

 United States Geological Survey, 

 Washington, D. C. 



